Recipe 20.1. Getting Fresh Default Values at Each Function Call
Recipe 20.2. Coding Properties as Nested Functions
Recipe 20.3. Aliasing Attribute Values
Recipe 20.4. Caching Attribute Values
Recipe 20.5. Using One Method as Accessorfor Multiple Attributes
Recipe 20.6. Adding Functionality to a Class by Wrapping a Method
Recipe 20.7. Adding Functionality to a Class by Enriching All Methods
Recipe 20.8. Adding a Method to a Class Instance at Runtime
Recipe 20.9. Checking Whether Interfaces Are Implemented
Recipe 20.10. Using _ _new_ _ and _ _init_ _ Appropriately in Custom Metaclasses
Recipe 20.11. Allowing Chaining of Mutating List Methods
Recipe 20.12. Using Cooperative Super calls with Terser Syntax
Recipe 20.13. Initializing Instance Attributes Without Using _ _init_ _
Recipe 20.14. Automatic Initialization of Instance Attributes
Recipe 20.15. Upgrading Class Instances Automatically on reload
Recipe 20.16. Binding Constants at Compile Time
Recipe 20.17. Solving Metaclass Conflicts